Complexity reduction algorithm for prediction unit decision process in high efficiency video coding. Issue 1 (1st January 2016)

• Record Type: Journal Article
• Authors: Lee, Jong‐Hyeok; Kim, Byung‐Gyu; Jun, Dong‐San; Jung, Soon‐Heung; Choi, Jin Soo
• Is Part Of: IET image processing. Volume 10:Issue 1(2016)
• Page Start: 53
• Page End: 60
• Publication Date: 2016-01-01
• Subjects: computational complexity -- prediction theory -- video coding -- image resolution -- spatiotemporal phenomena -- image classification -- image motion analysis; PSNR decrement -- motion activity classification -- depth correlation -- spatiotemporal analysis -- computational complexity reduction algorithm -- PU decision method -- joint collaborative team -- HEVC -- high resolution video content -- high efficiency video coding -- prediction unit decision process; Image processing -- Periodicals; 621.36705
• DOI: 10.1049/iet-ipr.2013.0631
• Languages: English
• ISSNs: 1751-9659

Abstract

Abstract : To provide very high quality and/or high resolution video content under limited bandwidth conditions for transmission or storage, the high efficiency video coding (HEVC) has been recently finalised by the joint collaborative team on video coding. In this study, the authors propose a fast prediction unit (PU) decision method to reduce the computational complexity of HEVC encoder. They use an early PU decision in each coding unit‐level based on spatio‐temporal analyses and depth correlations. They also consider a classification of motion activity. Experimental results show that the encoding complexity can be reduced by up to 38% on average in the random access main profile configuration with only a small bit‐rate increment and a peak signal to noise ratio (PSNR) decrement, compared to high efficiency video coding test model (HM) 7.0 reference software.